A disturbing lack of compassion

Just when is the right to time to abandon the search for a murdered child (Moors murders: Time to move on, 18 August)? 10 years? 20? Perhaps the Guardian could tell us so that we can avoid any further lapse of taste. You suggest that the police "simply have better things to do". Such comments demonstrate a disturbing lack of compassion for the family of Keith Bennett, who surely have the right to expect any leads to be followed that might lead to the recovery of his remains. Only then can this case be properly put to rest.Simon MintzLiverpool

• There isn't a need for a new airport for London (Boris attacks Cameron for 'pussyfooting' over airport, 15 August), but there is a need for more choice for the majority who do not live near London and would rather not have the inconvenience of having to use its airports for their international travel.Dr John DaviesKirkby-in-Cleveland, North Yorkshire

• Andrew Manze's conducting of the three Vaughan Williams symphonies (Review: Prom 46, 17 August) was made all the more impressive by the way he held the silence at the end of each symphony until he was ready for the applause to start. So often, it seems, Prom audiences are racing as to who can clap first.Nick WildeBedford

• So Tory backbenchers think Britons are the worst idlers in the world (Report, 18 August). So who are the best?Tom FrostLondon